AS61592FORTLINK INTERNET CORPORATIVA
As of 27th September 2026, AS61592 (FORTLINK INTERNET CORPORATIVA), an access network registered in Brazil with LACNIC, originates 9 IPv4 prefixes covering 6.1k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 13,915th-largest of the 79,536 networks we see originating IPv4, and the 1,074th-largest of 7,983 in Brazil. It is seen behind 4 upstream networks, most often AS3356 (Lumen (Level 3)) and AS14840 (BR.DIGITAL), and in front of 15 downstream networks. Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 40% of its routes reach at least 90% of full-feed peers.
At a glance
IPv4 prefixes
IPv6 prefixes
IPv4 addresses
IPv6 /64s
Upstream graph
The networks AS61592 is seen behind, one and two hops out, drawn from real AS paths.
Networks observed one and two hops upstream of AS61592 in real AS paths. A thicker line means more vantage points saw that adjacency, so weight tracks how well attested it is — not how much traffic it carries. Adjacency is an observation; whether it is a transit purchase or a settlement-free peering is an inference, and is labelled as one wherever we show it.
Neighbouring networks
37
adjacent networks
- Upstreams
- 411%
- Peers
- 1849%
- Downstreams
- 1541%
Networks carrying this one's traffic toward the rest of the internet.
| Network | Country | Relationship | Paths | Vantage pts |
|---|---|---|---|---|
| AS3356Lumen (Level 3) | Peer | 1,377 | 110 | |
| AS14840BR.DIGITAL | Peer | 1,024 | 110 | |
| AS61568ALOO TELECOM - FSF TECNOLOGIA SA | Peer | 604 | 31 | |
| AS263276BBG TELECOM LTDA | Peer | 138 | 21 |
Prefixes
The largest blocks AS61592 originates, widest first.
| Prefix | Addresses | Visibility |
|---|---|---|
| 45.224.216.0/22 | 1k | 81/82 |
| 45.232.188.0/22 | 1k | 81/82 |
| 45.234.100.0/22 | 1k | 81/82 |
| 45.224.216.0/23 | 512 | 21/82 |
| 45.224.218.0/23 | 512 | 21/82 |
| 45.232.188.0/23 | 512 | 21/82 |
| 45.232.190.0/23 | 512 | 21/82 |
| 45.234.100.0/23 | 512 | 21/82 |
| 45.234.102.0/23 | 512 | 21/82 |
| 2804:4c34::/32 | 4.3B × /64 | 65/65 |
Routing health
How AS61592's own announcements validate against RPKI and how far they propagate. The same measures for the whole routing table are on the routing table in numbers.
RPKI origin validation
- Valid100.0%10
- Invalid0.0%0
- No ROA0.0%0
Propagation
- Globally propagated90% of full-feed peers or more40.0%4
- Partially propagated40% to 90%0.0%0
- Seen by few peersUnder 40%60.0%6
Prefix sizes
IPv4 — 9 prefixes
IPv6 — 1 prefixes
- /324.3B × /64100.0%1
Recent changes
Announcements that started or stopped since 28th Aug 2026.
No announcement by AS61592 started or stopped in this period.
Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.